There is no widely documented film, show or creator behind this short vocal clip, and it circulates online mainly as a standalone reaction sound rather than as a quoted line from a known work. Its appeal is its simplicity: the drawn-out sound is instantly readable as surprise, so editors reuse it across memes, reaction videos and short-form clips without needing context. It sits alongside other exaggerated vocal reactions such as oh my god, wow, which work for the same reason, and it has stayed useful because a genuine-sounding gasp ages far less quickly than a topical joke.